I was just thinking the same thing. I need mine done. But my mechanic said he has to change the thermostat as well and said there is a risk that because my taurus has a complete plastic thermostat/water outlet assembly, I run the risk of it cracking during the removal/install of the thermostat housing. And that part is $285..

Oh and I have a 2011 Limited as well.

Now I am not sure what to do. So hopefully someone responds with assistance.

Me three.
Changed the green antifreeze Ford part # CVC-10-A (Canada) at 50,000 KM adding 50-50 antifreeze & distilled water mixed, do NOT use tap water.
Best to use Ford product antifreeze as the water pump is mounted inside the block which is a major job to replace.
Did not change the thermostat.

First I buy 6 or 8 gallons of distilled water. A gallon of distilled water is less than a dollar at Walmart, it's a cheap price to pay to avoid getting hardwater deposits in your cooling system. And as mentioned above, I'd only use the genuine Ford Motorcraft coolant recommended for your car.

Starting with a cool/cold engine, I remove the coolant tank cap to prevent pressure buildup. Then I start and run the car until the coolant is hot and fully circulating in the engine. Shut off the car and remove the plug on the bottom of the radiator until it all drains out. Then I reinstall the drain plug and refill the radiator with distilled water. I repeat the above run-shutoff-drain-refill-with-distilled-water process until the water that drains out is clear or nearly clear.

After draining the water for the last time, the cooling system holds nearly pure distilled water. So I refill with as much straight/non-diluted antifreeze as it will hold. That gets it very close to 50-50 mix.
Check your owner's manual to see what your cooling system capacity is. If you can't get enough pure antifreeze in to make it a 50/50 mix, then a few days later after some driving to mix everything up, drain another 1/3 gallon (or whatever is necessary) out and replace with straight antifreeze. That should give you a 50-50 mix of distilled water and antifreeze. Be sure to check the coolant reservoir a few times over the next couple of weeks to top it off with 50/50 mix to replace any air that "burps" out.